Sagot :
Rate * Time = Work
Pipe Large 1/x*1ohrs =10/x
Pipe Small 1/x+4.5*10hrs=10/x+4.5
10/x+10/x+4.5=1
x^2-15.5x-45
x=18
Pl =18
Ps= 18 +4.5=22.5
Pipe Large = 18hrs
Pipe Small= 22.5hrs
It takes 22.5 for smaller pipe to fill the tank alone.
It takes 18 hours for larger pipe to fill the tank alone.
(Please attached solution.)
It takes 18 hours for larger pipe to fill the tank alone.
(Please attached solution.)